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92 places from Ontario with a recent one-way price. Prices we can stand behind come first, then the cheapest.
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| City | From | Dates | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| Portland PDX | $87 | 27 Oct | ONT → PDX | 1 stop | found 4 days ago | Open this trip |
| Las Vegas LAS | $104 | 25 Oct | ONT → LAS | nonstop | found 4 days ago | Open this trip |
| Seattle SEA | $108 | 29 Oct | ONT → SEA | nonstop | found 6 days ago | Open this trip |
| Chicago CHI | $114 | 23 Oct | ONT → ORD | 1 stop | found 6 days ago | Open this trip |
| San Francisco SFO | $115 | 30 Oct | ONT → SFO | nonstop | found today | Open this trip |
| Denver DEN | $141 | 28 Oct | ONT → DEN | 1 stop | found yesterday | Open this trip |
| Salt Lake City SLC | $141 | 28 Oct | ONT → SLC | 1 stop | found yesterday | Open this trip |
| Miami MIA | $154 | 23 Oct | ONT → MIA | stops unknown | found 4 days ago | Open this trip |
| Guadalajara GDL | $177 | 21 Oct | ONT → GDL | nonstop | found today | Open this trip |
| New York NYC | $178 | 28 Oct | ONT → LGA | 1 stop | found 5 days ago | Open this trip |
| Tampa TPA | $180 | 24 Oct | ONT → TPA | stops unknown | found 4 days ago | Open this trip |
| Boston BOS | $248 | 26 Oct | ONT → BOS | stops unknown | found 6 days ago | Open this trip |
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work